Scraper



Model.) 2 Sheets-Shet 1.

' G. D MATGHAM.

Scraper. No. 234,834. Paten ted Nov. 23, 1880.

N-PETF-R'i, PHOTOUTHOGRAPHER, WASHINGTON D 0 (Modeh) 2 Sheets-Sheet 2.

G. D. MATGHAM.

Scraper. No. ,234,834. Patented Nov. 23, I880.

NPETERS, PNOTO-LITHOGRAPHER. WASHINGTON. D C.

UNl'lE TATES GEORGE l). MATOHAM,

OF PITTSFIELD, OHIO.

SCRAPE R.

SPECIFICATION forming part of Letters Patent No. 234,834, dated November23, 1880,

Application filed July 3, 1880.

To all whom it may concern Be it known that I, GEORGE D. MATOIIAM,

of Pitts field, in the county of Lorain and State of Ohio, have inventednew and useful Improvements in Road-Scrapers, of which the following isa description, reference being had to the accompanying drawings, makinga part of this specification, in which- Figure 1 is a side "iew of thescraper in position for being loaded. Fig. 2 is a side view of the samewhen dumped. Fig. 3 is a rack, to which reference will be made. Fig. 4is a plan view. Figs. 5 and 6 are detached sections.

Like letters of reference refer to like parts in the several views.

This invention relates to a self loading and discharging dirt-scraper, afull and complete description of which is as follows:

. figure.

In the drawings, A represents the body of the scraper, which consists ofthe sides B, bot tom 0, and back D, all of which is like scrapers inordinary use.

The edge of the scraper is metal, and consists of an upper plate, a, theedge of which is the cutting-edge. plate is flush with the bottom of thescraper to prevent lodgment of dirt at the junction of the plate andbottom. Said plate is secured to the wood-work of the scraper by thestraps E, riveted to the plate and bolted to the edge of the sides B.For further security a plate, I), is attached to the under side of platea. The rear edge of plate bis secured to the scraper by straps F,riveted to the plate and bolted to the edge of the sides B,substantially as shown in the drawings.

To each side of the scraper is fixed a draftplate, G, Figs. 1 and 4, towhich the arms H are respectively pivoted by check stirrups I. Saidstirrup consists of a rod having one end turned at right angles andinserted loosely through the arm into the scraper, and secured thereinby any suitable means. A portion of said rod is turned into a loop, 0,Fig. 5, and then bent parallel to the opposite end and secured in theside of the scraper, as seen in said The purpose of the check-stirrupwill presently be shown.

To the back of the scraper is secured a segmental rack, J, arranged toengage a rack, K, projecting from the under side of the stay-bar Theupper edge of the (ModeL) L, pivoted in the standards M, and extendingtherefrom back to the segmental rack, as seen in Fig. 1. Said rack K ispivoted at a in the bar, a slot being made therein for its admission,and wherein it is moved upward and downward by the handle N, forengaging and disengaging it from the segmental rack alluded to.

0, Figs. 1 and 4, is a guide for holding from lateral movement the endof the bar L. Said guide is pivoted to the segmental rack and allowed amovement in alignment with the bar.

P is a cross-piece, on which the arms H rest, and are secured thereto bystrap-bolts g, which are adjustable in slots 0, Fig. 4. To thecrosspiece alluded to is secured the tongue R, to the under side ofwhich are pivoted the ends of the arms H. To the upper side of thetongue is attached the evener A of the double-tree by means of theslotted ham mer-strap S, in the slot of which the hammer-bolt isinserted. A corresponding slot is made in the tongue through which thebolt passes and slides therein, as and for a purpose presently shown.

Between the standards M is fixed to the tongue R a stud, c, to which ispivoted a dumping-arm, B. Said arm is attached to the evener A by a rod,2', provided with a hook, whereby it is hooked into a staple of theevener. The opposite end of the rod is pivoted to the arm B at n. Adraitchain, C, connects the back of the scraper to the stud c, and adumpingchain, D, connects the arm B to the chain O, as shown in Fig. 1.

E is a yoke, the upper part of which is around the bar L, whereas thelower part of the yoke is around the dumping-arm, for lifting said armwhen it is in the position shown in Fig. 1.

Having described the construction of the scraper and the devices foroperatin g the same, the practical operation thereof is as follows: Theposition of the machine, as shown in Fig. 1, is such as, when readyfor-scraping in this position, it will be seen that the check-bar L islocked by the rack Kto the segmental rack J, and in which engagement itis held by a yoke, m, attached to the end of the bar and thrown up overthe handle N of the rack, thereby retaining the rack below the underside of the bar, that itmay engage the seg aaasaa ment J. By thisengagement of the two racks the scraper cannot turn over while beingused, the check-bar and rack holding it firmly in position while beingused and filling for dumping.

The draft in pulling forward the scraper is exerted, mainly, upon therod i, dumping-arm, and chain 0, there being at this time but lit tledraft upon the dumping-chain D, as the line of draft is very near thepivotal point a. In order to dump the scraper the operator lifts thecheck-bar from its engagement with the rack J. The scraper, whenreleased from the check, will be pulled over to the position shown inFig. 2 by the dumping-arm, which, on lifting the check-bar, causes theyoke E to lift upward the dumping-arm, thereby bringing the points a andn so far above the pivotal point 0 of the arm that it is easily andreadily drawn forward from the position shown in Fig. 1 to that shown inFig. 2, and at the same time draws with it the scraper, by virtue of thechain D, by its connection with the chain 0 and dumping-arm. In this actof turning or dumping the scraper the doubletree also moves forward bythe hammer-bolt moving along in the hammer-strap, thereby pullingforward the arm for (lumping the scraper.

It will be observed that the dumping-chain D is attached to the extremeend of the dumping-arm at n, the link of the chain being held in thelower end of the slot; hence on lifting the arm the chain D will bedrawn rapidly upward as well as forward, thereby drawing upon thescraper in a lifting manner, as the end of the arm and the back of thescraper move upward and forward in the same direction and at the sametime.

The 076121t01' can at an time check the nearer to or farther from thescraping-edge. The holes (1 are made in the sides for that purpose. Moreor less angle can be given to theposition of the scraper for scraping,or held in a vertical position for leveling dirt, by adjusting thecheck-bar in its engagement with the segment-rack J, as above described.

Scrapers of different widths can be used in connection with the dumpingdevice by adapting the width of the arms to the scraper, which may bedone by loosening the strap-bolts g, thereby allowing the arms to bespread out or closed in, as the width of the scraper may require.

Fig. 3, Plate 1, represents a rack, which may be secured to the underside of the check-bar in lieu of the rack K.

hat I claimas my invention, and desire to secure by Letters Patent,.is

1. The combination of the scraper A with the segment-rack, check-bar,and adjustable rack K, pivoted therein, and standards M, substantiallyas described, and for the purpose set forth.

2. The dumping-arm B and chains Dand O, in combination with the scraper,substantially as and for the purpose specified.

3. The sliding double'tree evener A, slotted hammer-strap and pole, bolt01, and rod 2 in combination with the dumping-arm, substantially as andfor the purpose set forth.

4. In combination with the checkbar L and dumping-arm, the yoke as andfor the purpose specified.

5. In dirt-scrapers, the adjustable arms H and check-stirrups, incombination with the scraper, as described, and for the purposespecified.

6. The combination of the scraper, segmental rack, and rack K, pivotedin the bar L, yoke E, chains and dumping-arm, rod 7;, sliding evener,and adjustable arms H and checkstirrups, constructed and arranged asdescribed, and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE D. MATOHAM.

Witnesses J. H. BURRIDGE, A. W. DECKER.

